Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:52 2012 Optimize a model with 135 rows, 84 columns and 419 nonzeros Presolve time: 0.00s Presolved: 135 rows, 84 columns, 419 nonzeros Variable types: 0 continuous, 84 integer (84 binary) Found heuristic solution: objective 37.0000000 Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 17 33.00000 0.00000 100% - 0s 0 0 0.79412 0 19 33.00000 0.79412 97.6% - 0s 0 0 0.81181 0 27 33.00000 0.81181 97.5% - 0s 0 0 0.83824 0 19 33.00000 0.83824 97.5% - 0s 0 0 0.88235 0 19 33.00000 0.88235 97.3% - 0s 0 0 0.88235 0 19 33.00000 0.88235 97.3% - 0s 0 0 0.88235 0 19 33.00000 0.88235 97.3% - 0s H 0 0 30.0000000 0.88235 97.1% - 0s H 0 0 29.0000000 0.88235 97.0% - 0s 0 2 1.21467 0 19 29.00000 1.21467 95.8% - 0s * 30 21 12 27.0000000 4.85135 82.0% 14.3 0s * 128 30 8 26.0000000 14.00000 46.2% 10.2 0s Cutting planes: Gomory: 1 Mod-K: 6 Explored 328 nodes (2962 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%